heideniiain



(No Model.)

W. HEIDENHAIN.

MARKING WHEEL FOR TRANSFERRING PATTERNS.

No. 865,129. Patented June 21,1887.

embroidery, sign fresco, decorative, or other work.

By means of the springf a light, easy, and uniform friction between the contacting surfaces of a and b is produced and maintained, and the change of. the instrument toanew line is readily made without diifionlty or jar. Furthermore, the pressure of the spring f prevents the small armed wheel rfrouitaking an arbitrarily Wrong direction whenever the )rcssure of the operators hand is released, because to change the direction of the movement of the, small wheel and its rotating spin .19 the frict on between the surfaces a and 6 must lways first beovercome. The pressure of the spring f prevents also, at the lifting of the hand, a fallingdowu-of the wheel 7', which othenwisc' has been found quite troublesome.

When using the machine,itis well to putthe thumb, middle and index fingers on the rib m of the handle and the little finger as a support on the surface to be worked on. 'manner it is very easy to attain a vertical position of the spindle 0,. which position is required when using the instrument.

Having thus described my invention,v what In this I claim as new,and desire to secure by Letters Patent, isr 1. An improved marking-wheel consisting of an operating-handle, a swivel-spindle, centrally seated therein, and allowed both a rotary and a longitudinal movement in the said handle, with a marking-wheel jonrnaled in the outer end of the said swivel-spindle, all substautially as shown and described.

2. A handle, h, a central spindle seated therein and carryin ing-wheel, and the longitudinally-adjusting spring f, arranged to habitually throw the retainingcoll'ar a of the spindle against the abutment-ferrule bat the outer end of the handle 71, but so as to allow an outward movement of the said spindle when required, the whole arranged and combined substantially as shown and described.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

WI LH. HEIDENHAIN.

W it messes:

B. ROI, E. MEIsTER.

at its outer end a mark- 

